Last week, a "self sustaining electrical turbine generator" was found on Kickstarter. Another name for the product is a perpetual motion machine. (We saw this story first on GigaOm.) Put simply, a ...
Let's start with a water wheel in still water with an electric generator hooked up to it. Let's say it has a ratchet wheel so it can only turn in one direction. I want to calculate the probability ...
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